Every pool cleaning robot works in an environment where water, cleaning chemicals, fine sand and continuous movement are part of the job. These conditions place different demands on internal components than ordinary mechanical equipment.

For many manufacturers, the challenge isn't simply finding a bearing with the right dimensions. It also needs to fit a custom drive structure, resist corrosion over long periods, and continue running smoothly after thousands of cleaning cycles.

That's why non-standard plastic bearings have become a common solution in underwater robotic equipment.

Developed for Pool Cleaning Robot Assemblies

This 16×29×11mm plastic bearing is manufactured for underwater cleaning robots and other compact equipment that operates below the waterline.

Unlike standard industrial bearings, this model features a grooved inner bore, allowing it to match dedicated shafts or transmission parts used in proprietary drive systems. The combination of a POM housing, stainless steel balls, and a PA66 cage helps the bearing remain stable during repeated operation while keeping the overall assembly lightweight.

Because each robot platform is different, this bearing is typically supplied as part of an OEM project rather than selected from a standard catalogue.

Why OEM Manufacturers Use Non-Standard Plastic Bearings

Standard bearings work well in many industrial machines, but robotic pool cleaners often require components that follow the product design instead of the other way around.

A custom bearing allows engineers to:

• Match unique shaft profiles
• Reduce unnecessary machining
• Simplify assembly during production
• Improve compatibility with molded plastic parts
• Maintain compact equipment dimensions

For this reason, non-standard plastic bearings are frequently specified during the product development stage instead of being added later as replacement parts.

Basic Specifications

More Than Just a Bearing

In underwater equipment, every component affects the reliability of the whole machine. A bearing may be small, but it directly influences wheel movement, transmission efficiency and long-term maintenance requirements.

Choosing engineering plastics instead of conventional steel helps reduce corrosion issues while lowering component weight. Stainless steel balls provide stable rolling performance, and the nylon cage supports smooth movement during continuous operation.

The result is a component developed around the needs of the equipment rather than simply following a standard bearing specification.

Engineering Support for Custom Projects

Most of the plastic bearings we manufacture are developed together with our customers rather than selected from an existing product list.

Our engineering team can support projects requiring:

Special inner bore structures

Non-standard outside dimensions

Custom engineering plastics

Alternative rolling element materials

Prototype development

Mass production

Whether you're building a new pool cleaning robot or improving an existing design, we can manufacture bearings that match your drawings and functional requirements.

1. Can the grooved inner bore be customized?
Yes. Groove dimensions and profiles can be produced according to customer drawings.

2. Is this a standard bearing size?
No. This is a non-standard bearing developed for specific equipment.

3. Can you manufacture similar bearings in other dimensions?
Yes. We regularly produce custom plastic bearings in different sizes and structures.

4. Do you support OEM projects?
Yes. Most of our plastic bearings are supplied for OEM manufacturing.

5. Can ceramic balls be used instead of stainless steel?
Yes. Ceramic rolling elements are available for applications with special requirements.

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